Tree 25 m. Twigs l-2(-2.5) mm diameter, early glabrescent, hairs greyish, less than 0.1 mm; older twigs neither cracking nor flaking; lenticels inconspicuous or absent. Leaves membranous, (elliptic-)oblong, 6-10.5 by 2.5-4 cm, base broadly attenuate, apex subacute or acute-acuminate; upper surface blackish brown, lower surface brown, early glabrescent, hairs less than 0.1 mm; not papillose; dots absent; midrib almost flat above, lateral nerves 25-30 per side, at 70-80° to the midrib, slender, flat and faint above, faint below, lines of interarching and venation indistinct; petiole 10-18 by 1-1.5 mm; leaf bud 6-10 by 1 mm, hairs less than 0.1 mm. Inflorescences (from infructescence): sessile, short, of the Knema-typt, possibly a single axillary flower only, with the pedicel 4 mm long or less. Male and female flowers not seen. Fruits (apparently of mature size, but seeds not yet fully developed, i.e. shrunken within the aril): axillary to a lower leaf, solitary, ovoid-ellipsoid, 7 by 5 cm, apex and base rounded, glabrous, except for some minute appressed brownish hairs less than 0.1 mm (hence ovary minutely pubescent) towards the insertion of the fruiting pedicel; pericarp 2-2.5 cm thick; seeds (immature) ellipsoid, 2 cm; fruiting pedicel short, rather thick, 4 mm long, 5 mm thick, brown, longitudinally cracked.
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